Finding the Fourth Proportional to 149,784.80, 224,614.72 and 60,978

Step by Step Solution

1. Step 1: Write the proportion equation
   149,784.80 : 224,614.72 = 60,978 : x
2. Step 2: Convert to fraction form
   149,784.80/224,614.72 = 60,978/x
3. Step 3: Cross multiply
   149,784.80x = 224,614.72 × 60,978
4. Step 4: Simplify right side
   149,784.80x = 13,696,556,396.16
5. Step 5: Solve for x
   x = 13,696,556,396.16/149,784.80
6. Step 6: Final answer
   x = 91,441.56