Finding the Fourth Proportional to 42,090.84, 58,085.69 and 22,970.77

Step by Step Solution

1. Step 1: Write the proportion equation
   42,090.84 : 58,085.69 = 22,970.77 : x
2. Step 2: Convert to fraction form
   42,090.84/58,085.69 = 22,970.77/x
3. Step 3: Cross multiply
   42,090.84x = 58,085.69 × 22,970.77
4. Step 4: Simplify right side
   42,090.84x = 1,334,273,025.28
5. Step 5: Solve for x
   x = 1,334,273,025.28/42,090.84
6. Step 6: Final answer
   x = 31,699.84