Finding the Fourth Proportional to 1,165,900,097.43, 1,749,156,887.34 and 418,991,326.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,165,900,097.43 : 1,749,156,887.34 = 418,991,326.29 : x
2. Step 2: Convert to fraction form
   1,165,900,097.43/1,749,156,887.34 = 418,991,326.29/x
3. Step 3: Cross multiply
   1,165,900,097.43x = 1,749,156,887.34 × 418,991,326.29
4. Step 4: Simplify right side
   1,165,900,097.43x = 732,881,564,115,874,688
5. Step 5: Solve for x
   x = 732,881,564,115,874,688/1,165,900,097.43
6. Step 6: Final answer
   x = 628,597,223.49