Finding the Fourth Proportional to 271,499.02, 406,583.90 and 191,339.98

Step by Step Solution

1. Step 1: Write the proportion equation
   271,499.02 : 406,583.90 = 191,339.98 : x
2. Step 2: Convert to fraction form
   271,499.02/406,583.90 = 191,339.98/x
3. Step 3: Cross multiply
   271,499.02x = 406,583.90 × 191,339.98
4. Step 4: Simplify right side
   271,499.02x = 77,795,755,294.32
5. Step 5: Solve for x
   x = 77,795,755,294.32/271,499.02
6. Step 6: Final answer
   x = 286,541.57