Finding the Fourth Proportional to 291,499,372.71, 402,269,152.91 and 159,340,892.13

Step by Step Solution

1. Step 1: Write the proportion equation
   291,499,372.71 : 402,269,152.91 = 159,340,892.13 : x
2. Step 2: Convert to fraction form
   291,499,372.71/402,269,152.91 = 159,340,892.13/x
3. Step 3: Cross multiply
   291,499,372.71x = 402,269,152.91 × 159,340,892.13
4. Step 4: Simplify right side
   291,499,372.71x = 64,097,925,700,262,072
5. Step 5: Solve for x
   x = 64,097,925,700,262,072/291,499,372.71
6. Step 6: Final answer
   x = 219,890,441.29