Finding the Fourth Proportional to 56,003.40, 77,019.86 and 44,538.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,003.40 : 77,019.86 = 44,538.05 : x
2. Step 2: Convert to fraction form
   56,003.40/77,019.86 = 44,538.05/x
3. Step 3: Cross multiply
   56,003.40x = 77,019.86 × 44,538.05
4. Step 4: Simplify right side
   56,003.40x = 3,430,314,679.57
5. Step 5: Solve for x
   x = 3,430,314,679.57/56,003.40
6. Step 6: Final answer
   x = 61,251.90