Finding the Fourth Proportional to 52,538.72, 72,444.56 and 42,948.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,538.72 : 72,444.56 = 42,948.80 : x
2. Step 2: Convert to fraction form
   52,538.72/72,444.56 = 42,948.80/x
3. Step 3: Cross multiply
   52,538.72x = 72,444.56 × 42,948.80
4. Step 4: Simplify right side
   52,538.72x = 3,111,406,918.53
5. Step 5: Solve for x
   x = 3,111,406,918.53/52,538.72
6. Step 6: Final answer
   x = 59,221.22