Finding the Fourth Proportional to 274,282.50, 378,492.04 and 153,402.86

Step by Step Solution

1. Step 1: Write the proportion equation
   274,282.50 : 378,492.04 = 153,402.86 : x
2. Step 2: Convert to fraction form
   274,282.50/378,492.04 = 153,402.86/x
3. Step 3: Cross multiply
   274,282.50x = 378,492.04 × 153,402.86
4. Step 4: Simplify right side
   274,282.50x = 58,061,762,561.22
5. Step 5: Solve for x
   x = 58,061,762,561.22/274,282.50
6. Step 6: Final answer
   x = 211,685.99