Finding the Fourth Proportional to 105,752, 145,937.76 and 61,040

Step by Step Solution

1. Step 1: Write the proportion equation
   105,752 : 145,937.76 = 61,040 : x
2. Step 2: Convert to fraction form
   105,752/145,937.76 = 61,040/x
3. Step 3: Cross multiply
   105,752x = 145,937.76 × 61,040
4. Step 4: Simplify right side
   105,752x = 8,908,040,870.40
5. Step 5: Solve for x
   x = 8,908,040,870.40/105,752
6. Step 6: Final answer
   x = 84,235.20