Finding the Fourth Proportional to 72,302.93, 108,443.71 and 42,331.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72,302.93 : 108,443.71 = 42,331.01 : x
2. Step 2: Convert to fraction form
   72,302.93/108,443.71 = 42,331.01/x
3. Step 3: Cross multiply
   72,302.93x = 108,443.71 × 42,331.01
4. Step 4: Simplify right side
   72,302.93x = 4,590,531,283.14
5. Step 5: Solve for x
   x = 4,590,531,283.14/72,302.93
6. Step 6: Final answer
   x = 63,490.25