Finding the Fourth Proportional to 143,690,475.57, 215,671,978.71 and 88,937,437.92

Step by Step Solution

1. Step 1: Write the proportion equation
   143,690,475.57 : 215,671,978.71 = 88,937,437.92 : x
2. Step 2: Convert to fraction form
   143,690,475.57/215,671,978.71 = 88,937,437.92/x
3. Step 3: Cross multiply
   143,690,475.57x = 215,671,978.71 × 88,937,437.92
4. Step 4: Simplify right side
   143,690,475.57x = 19,181,313,217,604,188
5. Step 5: Solve for x
   x = 19,181,313,217,604,188/143,690,475.57
6. Step 6: Final answer
   x = 133,490,498.53