Finding the Fourth Proportional to 143,690,483.58, 215,671,990.72 and 88,937,445.92

Step by Step Solution

1. Step 1: Write the proportion equation
   143,690,483.58 : 215,671,990.72 = 88,937,445.92 : x
2. Step 2: Convert to fraction form
   143,690,483.58/215,671,990.72 = 88,937,445.92/x
3. Step 3: Cross multiply
   143,690,483.58x = 215,671,990.72 × 88,937,445.92
4. Step 4: Simplify right side
   143,690,483.58x = 19,181,316,011,118,744
5. Step 5: Solve for x
   x = 19,181,316,011,118,744/143,690,483.58
6. Step 6: Final answer
   x = 133,490,510.53