Finding the Fourth Proportional to 111,580.93, 153,981.57 and 61,279.93

Step by Step Solution

1. Step 1: Write the proportion equation
   111,580.93 : 153,981.57 = 61,279.93 : x
2. Step 2: Convert to fraction form
   111,580.93/153,981.57 = 61,279.93/x
3. Step 3: Cross multiply
   111,580.93x = 153,981.57 × 61,279.93
4. Step 4: Simplify right side
   111,580.93x = 9,435,979,830.89
5. Step 5: Solve for x
   x = 9,435,979,830.89/111,580.93
6. Step 6: Final answer
   x = 84,566.24