Finding the Fourth Proportional to 238,897.32, 358,397.82 and 72,681

Step by Step Solution

1. Step 1: Write the proportion equation
   238,897.32 : 358,397.82 = 72,681 : x
2. Step 2: Convert to fraction form
   238,897.32/358,397.82 = 72,681/x
3. Step 3: Cross multiply
   238,897.32x = 358,397.82 × 72,681
4. Step 4: Simplify right side
   238,897.32x = 26,048,711,955.42
5. Step 5: Solve for x
   x = 26,048,711,955.42/238,897.32
6. Step 6: Final answer
   x = 109,037.27