Finding the Fourth Proportional to 95,538.23, 143,307.68 and 28,978.91

Step by Step Solution

1. Step 1: Write the proportion equation
   95,538.23 : 143,307.68 = 28,978.91 : x
2. Step 2: Convert to fraction form
   95,538.23/143,307.68 = 28,978.91/x
3. Step 3: Cross multiply
   95,538.23x = 143,307.68 × 28,978.91
4. Step 4: Simplify right side
   95,538.23x = 4,152,899,499.60
5. Step 5: Solve for x
   x = 4,152,899,499.60/95,538.23
6. Step 6: Final answer
   x = 43,468.46