Finding the Fourth Proportional to 611,092.50, 916,663.59 and 291,079.86

Step by Step Solution

1. Step 1: Write the proportion equation
   611,092.50 : 916,663.59 = 291,079.86 : x
2. Step 2: Convert to fraction form
   611,092.50/916,663.59 = 291,079.86/x
3. Step 3: Cross multiply
   611,092.50x = 916,663.59 × 291,079.86
4. Step 4: Simplify right side
   611,092.50x = 266,822,309,444.30
5. Step 5: Solve for x
   x = 266,822,309,444.30/611,092.50
6. Step 6: Final answer
   x = 436,631.62