Finding the Fourth Proportional to 156,145,559.94, 215,478,242.01 and 86,530,798.98

Step by Step Solution

1. Step 1: Write the proportion equation
   156,145,559.94 : 215,478,242.01 = 86,530,798.98 : x
2. Step 2: Convert to fraction form
   156,145,559.94/215,478,242.01 = 86,530,798.98/x
3. Step 3: Cross multiply
   156,145,559.94x = 215,478,242.01 × 86,530,798.98
4. Step 4: Simplify right side
   156,145,559.94x = 18,645,504,443,931,100
5. Step 5: Solve for x
   x = 18,645,504,443,931,100/156,145,559.94
6. Step 6: Final answer
   x = 119,411,044.74