Finding the Fourth Proportional to 209,070.82, 288,517.98 and 113,577.52

Step by Step Solution

1. Step 1: Write the proportion equation
   209,070.82 : 288,517.98 = 113,577.52 : x
2. Step 2: Convert to fraction form
   209,070.82/288,517.98 = 113,577.52/x
3. Step 3: Cross multiply
   209,070.82x = 288,517.98 × 113,577.52
4. Step 4: Simplify right side
   209,070.82x = 32,769,156,643.81
5. Step 5: Solve for x
   x = 32,769,156,643.81/209,070.82
6. Step 6: Final answer
   x = 156,737.11