Finding the Fourth Proportional to 62,145.58, 85,731.56 and 42,009.48

Step by Step Solution

1. Step 1: Write the proportion equation
   62,145.58 : 85,731.56 = 42,009.48 : x
2. Step 2: Convert to fraction form
   62,145.58/85,731.56 = 42,009.48/x
3. Step 3: Cross multiply
   62,145.58x = 85,731.56 × 42,009.48
4. Step 4: Simplify right side
   62,145.58x = 3,601,538,255.19
5. Step 5: Solve for x
   x = 3,601,538,255.19/62,145.58
6. Step 6: Final answer
   x = 57,953.25