Finding the Fourth Proportional to 42,090.56, 58,085.31 and 22,970.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,090.56 : 58,085.31 = 22,970.48 : x
2. Step 2: Convert to fraction form
   42,090.56/58,085.31 = 22,970.48/x
3. Step 3: Cross multiply
   42,090.56x = 58,085.31 × 22,970.48
4. Step 4: Simplify right side
   42,090.56x = 1,334,247,451.65
5. Step 5: Solve for x
   x = 1,334,247,451.65/42,090.56
6. Step 6: Final answer
   x = 31,699.45