Finding the Fourth Proportional to 162,448.95, 243,689.71 and 55,818.86

Step by Step Solution

1. Step 1: Write the proportion equation
   162,448.95 : 243,689.71 = 55,818.86 : x
2. Step 2: Convert to fraction form
   162,448.95/243,689.71 = 55,818.86/x
3. Step 3: Cross multiply
   162,448.95x = 243,689.71 × 55,818.86
4. Step 4: Simplify right side
   162,448.95x = 13,602,482,275.61
5. Step 5: Solve for x
   x = 13,602,482,275.61/162,448.95
6. Step 6: Final answer
   x = 83,733.89