Finding the Fourth Proportional to 58,870.37, 88,308.60 and 19,430.55

Step by Step Solution

1. Step 1: Write the proportion equation
   58,870.37 : 88,308.60 = 19,430.55 : x
2. Step 2: Convert to fraction form
   58,870.37/88,308.60 = 19,430.55/x
3. Step 3: Cross multiply
   58,870.37x = 88,308.60 × 19,430.55
4. Step 4: Simplify right side
   58,870.37x = 1,715,884,667.73
5. Step 5: Solve for x
   x = 1,715,884,667.73/58,870.37
6. Step 6: Final answer
   x = 29,146.83