Finding the Fourth Proportional to 58,301.79, 80,261.91 and 55,623.72

Step by Step Solution

1. Step 1: Write the proportion equation
   58,301.79 : 80,261.91 = 55,623.72 : x
2. Step 2: Convert to fraction form
   58,301.79/80,261.91 = 55,623.72/x
3. Step 3: Cross multiply
   58,301.79x = 80,261.91 × 55,623.72
4. Step 4: Simplify right side
   58,301.79x = 4,464,466,008.51
5. Step 5: Solve for x
   x = 4,464,466,008.51/58,301.79
6. Step 6: Final answer
   x = 76,575.11