Finding the Fourth Proportional to 91,384.47, 126,116.60 and 55,575.99

Step by Step Solution

1. Step 1: Write the proportion equation
   91,384.47 : 126,116.60 = 55,575.99 : x
2. Step 2: Convert to fraction form
   91,384.47/126,116.60 = 55,575.99/x
3. Step 3: Cross multiply
   91,384.47x = 126,116.60 × 55,575.99
4. Step 4: Simplify right side
   91,384.47x = 7,009,054,622.55
5. Step 5: Solve for x
   x = 7,009,054,622.55/91,384.47
6. Step 6: Final answer
   x = 76,698.53