Finding the Fourth Proportional to 156,634,151.61, 216,142,476.71 and 90,558,908.79

Step by Step Solution

1. Step 1: Write the proportion equation
   156,634,151.61 : 216,142,476.71 = 90,558,908.79 : x
2. Step 2: Convert to fraction form
   156,634,151.61/216,142,476.71 = 90,558,908.79/x
3. Step 3: Cross multiply
   156,634,151.61x = 216,142,476.71 × 90,558,908.79
4. Step 4: Simplify right side
   156,634,151.61x = 19,573,626,833,572,796
5. Step 5: Solve for x
   x = 19,573,626,833,572,796/156,634,151.61
6. Step 6: Final answer
   x = 124,963,979.01