Finding the Fourth Proportional to 100,662,849.59, 138,912,554.37 and 58,278,196.16

Step by Step Solution

1. Step 1: Write the proportion equation
   100,662,849.59 : 138,912,554.37 = 58,278,196.16 : x
2. Step 2: Convert to fraction form
   100,662,849.59/138,912,554.37 = 58,278,196.16/x
3. Step 3: Cross multiply
   100,662,849.59x = 138,912,554.37 × 58,278,196.16
4. Step 4: Simplify right side
   100,662,849.59x = 8,095,573,092,661,525
5. Step 5: Solve for x
   x = 8,095,573,092,661,525/100,662,849.59
6. Step 6: Final answer
   x = 80,422,649.73