Finding the Fourth Proportional to 145,321.34, 218,023.69 and 61,038.15

Step by Step Solution

1. Step 1: Write the proportion equation
   145,321.34 : 218,023.69 = 61,038.15 : x
2. Step 2: Convert to fraction form
   145,321.34/218,023.69 = 61,038.15/x
3. Step 3: Cross multiply
   145,321.34x = 218,023.69 × 61,038.15
4. Step 4: Simplify right side
   145,321.34x = 13,307,762,693.77
5. Step 5: Solve for x
   x = 13,307,762,693.77/145,321.34
6. Step 6: Final answer
   x = 91,574.73