Finding the Fourth Proportional to 42,090.82, 58,085.67 and 22,970.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,090.82 : 58,085.67 = 22,970.75 : x
2. Step 2: Convert to fraction form
   42,090.82/58,085.67 = 22,970.75/x
3. Step 3: Cross multiply
   42,090.82x = 58,085.67 × 22,970.75
4. Step 4: Simplify right side
   42,090.82x = 1,334,271,199.86
5. Step 5: Solve for x
   x = 1,334,271,199.86/42,090.82
6. Step 6: Final answer
   x = 31,699.82